package com.cfk.shopmail.auth.controller;

/*
    @CreateTime 2022/1/1 22:27
    @CreateBy cfk
*/

import com.alibaba.fastjson.TypeReference;
import com.cfk.common.constant.AuthServerConstant;
import com.cfk.common.exception.BizCodeEnum;
import com.cfk.common.utils.R;
import com.cfk.common.vo.MemberRespVo;
import com.cfk.shopmail.auth.feign.MemeberFeignService;
import com.cfk.shopmail.auth.feign.ThirdPartFeignService;
import com.cfk.shopmail.auth.vo.UserLoginVo;
import com.cfk.shopmail.auth.vo.UserRegistVo;
import org.bouncycastle.math.raw.Mod;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.support.DefaultMessageSourceResolvable;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

@Controller
public class LoginController {

    @Autowired
    ThirdPartFeignService thirdPartFeignService;

    @Autowired
    StringRedisTemplate redisTemplate;

    @Autowired
    MemeberFeignService memeberFeignService;

    @GetMapping("/login.html")
    public String loginPage(HttpSession session) {
        Object attribute = session.getAttribute(AuthServerConstant.LOGIN_USER);
        if (attribute == null) {
            //没登录
            return "login";
        }else {
            return "redirect:http://shopmail.com";
        }


    }
    //
    // @GetMapping("/reg.html")
    // public String regPage() {
    //     return "reg";
    // }

    @ResponseBody
    @GetMapping("/sms/sendcode")
    public R sendCode(@RequestParam("phone") String phone) {

        //TODO 1.接口防刷
        String redisCode = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + phone);
        if (!StringUtils.isEmpty(redisCode)) {
            long l = Long.parseLong(redisCode.split("_")[1]);
            if (System.currentTimeMillis() - l < 60000) {
                //60s内不能再发
                return R.error(BizCodeEnum.SMS_CODE_EXCEPTION.getCode(), BizCodeEnum.SMS_CODE_EXCEPTION.getMsg());
            }
        }

        String code = UUID.randomUUID().toString().substring(0, 5);

        //2.验证码再次校验
        String subString = code+"_"+System.currentTimeMillis();

        //缓存验证码，防止同一个手机号在60s内再次发送
        redisTemplate.opsForValue().set(AuthServerConstant.SMS_CODE_CACHE_PREFIX + phone, subString, 10, TimeUnit.MINUTES);

        thirdPartFeignService.sendCode(phone, code);
        return R.ok();
    }

    @PostMapping("/regist")
    public String regist(@Valid UserRegistVo vo, BindingResult result, RedirectAttributes redirectAttributes) {
        if (result.hasErrors()) {
            Map<String, String> errors = result.getFieldErrors().stream().collect(Collectors.toMap(FieldError::getField, FieldError::getDefaultMessage));
            // model.addAttribute("errors", errors);
            redirectAttributes.addFlashAttribute("errors", errors);
            //校验出错 转发到注册页面
            return "redirect:http://auth.shopmail.com/reg.html";
        }

        //校验验证码
        String code = vo.getCode();

        String s = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
        if (!StringUtils.isEmpty(s)) {
            if (code.equals(s.split("_")[0])) {
                //删除验证码；令牌机制
                redisTemplate.delete(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
                //验证码通过 //真正注册 调用远程服务
                R r = memeberFeignService.regist(vo);
                if (r.getCode() == 0) {
                    return "redirect:http://auth.shopmail.com/login.html";
                }else {
                    Map<String, String> errors = new HashMap<>();
                    errors.put("msg", r.getData("msg", new TypeReference<String>(){}));
                    redirectAttributes.addFlashAttribute("errors", errors);
                    return "redirect:http://auth.shopmail.com/reg.html";
                }
            }else {
                Map<String, String> errors = new HashMap<>();
                errors.put("code", "验证码错误");
                redirectAttributes.addFlashAttribute("errors", errors);
                return "redirect:http://auth.shopmail.com/reg.html";
            }
        }else {
            Map<String, String> errors = new HashMap<>();
            errors.put("code", "验证码错误");
            redirectAttributes.addFlashAttribute("errors", errors);
            return "redirect:http://auth.shopmail.com/reg.html";
        }

        //注册成功回到首页，回到登录页
    }



    @PostMapping("/login")
    public String login(UserLoginVo vo, RedirectAttributes redirectAttributes, HttpSession session) {

        //远程登录
        R login = memeberFeignService.login(vo);
        if (login.getCode() == 0) {
            //成功
            MemberRespVo data = login.getData("data", new TypeReference<MemberRespVo>() {
            });
            session.setAttribute(AuthServerConstant.LOGIN_USER, data);
            return "redirect:http://shopmail.com";
        } else {
            Map<String, String> errors = new HashMap<>();
            errors.put("msg", login.getData("msg", new TypeReference<String>(){}));
            redirectAttributes.addFlashAttribute("errors", errors);
            return "redirect:http://auth.shopmail.com/login.html";
        }


    }

}
